Water heater for stoves



Jan. 22 1924.

W. J. ELLIOTT WATER HEATER FOR STOYES Filed Feb. 10. 1922 M jam/0M4 \lljlwfizuww Patented Jan. 22, 19241..

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WILLIAM J. ELLIOTT, E BROOKLYN, NEW YORK.

WATER HEATER. FOR- STOVES.

' Application filed February T0 aZZ whom it may concern Be it known thatI, IVILLIAM J. ELLIOTT, a citizen of the UnitedStates residing atBrooklyn, in the county of Kings and State of New York, have inventedcertain new and useful Improvements in lVater Heaters for Stoves, ofwhich the following is a specification, reference being had therein tothe accompanying drawing.

This invention relates to a certain new and useful improvement in waterheaters especially adapted to be used in connection with vapor, gas andelectric stoves and is an improvement on my patent granted to me June 3,1919, Number 1,305,643? and the construction of water heater disclosedin an application filed by use October 21, 1921, Serial Number 509,385,the object being to improve the heating efficiency of the water back bycausing the water to pass transversely across the top and then backaround the burners.

Another and further object of the invention is to provide a water backwhich is formed of a single piece of pipe having a substantiallycircular or oval portion at one end and intermediate circular or ovalportions, the end portions being brought back in the same horizontalplane with the circular or oval portion and terminating in inlets andoutlets which canbe'readily connected to the inlet and outlet pipes'ofan ordinary water boiler.

Another object of my invention is to provide a water heater which can beformed with one or more circular or oval portions so that the water backcan be constructed to be used in connection with a gas stove having anynumber of burners.

Another object of the invention is to provide a construction of waterback which can be readily secured to the under side of a stove topconstructed in accordance with my patent above referred to.

Other and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined by theappended claim.

In the drawings,

Figure 1 is a plan view partly in section showing the application of myimproved construction of water back;'

Figure 2 is a section taken on line 22 of Figure 1; and

Figure 3 is a plan view partly in sec- 10, 1922. Serial No. 535,576.

tion showinga plurality of circular or oval portions to form a waterback for a gas stove having more than two burners.

In the drawings I have shown the application of my improved constructionof water back to a gas range 1 provided with burners 2 disposed underthe stove top in the usual manner. In using my improved construction ofwater back as shown, I place the back above these burners and secure thesame to a stove top 3 constructed substantially as shown in my patentwhich, comprises a rectangular shaped body having marginal flangesprovided with cut-away portions so that the waste heat units areutilized for heating the water and heating the auxiliary top.

The construction of water back disclosed in Figure 1 is formed of a pipebent intermediate its ends to form one or more circu lar or ovalportions 4, the ends being brought back in the same horizontal planewith a circular portion and substantially parallel therewith so as toconform to the shape thereof the ends extending through suitableopenings formed in one of the marginal flanges of the auxiliary top 3.

By constructing the water heater in this manner, the water incirculating through the coils thus formed passes from one side edge ofthe auxiliary topto approximately the other side edge of the top andthen around the burners and out the ends thereof which are threaded toform connecting ends 6 forming inlets and outlets which are adapted tobe connected in the usual manner to the boiler.

In my application above referred to the inlet and outlet were in a linewith the coils thus formed while in my improved construction disclosedin this application the inlet and outlet extend from one side of the topto the opposite side thereof and the coils are formed intermediate theinlet and outlet whereby I am able to increase the heating effect of thecoils.

In the form shown in Figure 3 I show a construction of water backespecially adapted to be used in connection with a four burner stove andthe inlet and outlets S and 9 have formed between their ends circular oroval portions 10, all of which are arranged in the same horizontal planeso that they can be readily attached to the under side of the auxiliarytop and by this construction the water enters one edge of the auxiliarytop, passes to the other edge, then back to the original edge in azigzag manner so as to increase the heating elfect of the water back orcoil.

lVhile I have shown the coil formed to be used in connection with a twoor tour burner stove, it is, of course, understood that the circular oroval portions can be of any number desired and I do not wish to limitmyself to the "forming of the back with any specified number of circularor oval portions as I am aware that the number will be determined by thenumber of burners on the stove to which the device is to be attached.

From the foregoing description it will i be seen that I have provided. awater heater formed of a pipe which at its ends. forms an inlet andoutlet and intermediate its ends co1ls lying 1n the same horizontalplane adapted to be arranged above the burners of the stove.

What I claim is rThe combination with a gas or vapor stove, of anauxiliary top having a marginal substantially vertically disposed flangeadapted to rest on said stove to hold said top spaced therefrom, of awater .coil arranged under said top ant. supported thereby formed of asingle piece of pipe having its ends extended through one flange of saidtop, the intermediate portions, of said pipe being bent to form one ormore substantially circular portions arranged in the same horizontalplane with the other portion of said pipe and adapted to be disposedover the burners of said gas or vapor stove.

In testimony whereof I hereunto affix my signature.-

WILLIAM J ELLIOTT.

